Antigonish Current Data

2023-09-28

Deployment Locations

ADCP Deployment Metadata

For all deployments:

  • Bin Size: 0.25 m
  • First Bin Range: 0.67 m
  • Ensemble Interval: 900 seconds
  • Averaging Interval: 900 seconds
  • Pings per Ensemble: 300

Current Speed Overview

  • Current speed over time for each location.
  • Each panel is for one bin; the number in the grey bar indicates the bin height above the sea floor (in metres).
  • Shallowest bins have fewer good observations because of side lobe interference.

Current Speed at Depth

Average Current Speed at Depth

Average current speed (+/- 1 standard deviation) for each depth bin.

Near-Bottom Current Speed

“Near-bottom” is the deepest bin at each station.

Percent of observations in 12 speed categories for the deepest depth bin at each station.

Extreme Current Speed

“Extreme values” are defined here as current speeds greater than the 95 th quantile (e.g., top 5 % of current speed observations at each location).


Near-Bottom Current Speed Over Time

Sea water speed over time. Shaded grey area indicates extreme values. Circles indicate the phase of the moon (yellow circle indicates full moon; black circle indicates new moon). Data from Moon Phases 2022 – Lunar Calendar for Antigonish, Nova Scotia, Canada

Extreme Current Speed Events

Top panel: duration of extreme current events (e.g., the amount of time when consecutive observations are > 95 th quantile).

Bottom panel: duration of time between extreme current events.

Note the difference in x-axis scale.

Current Speed & Direction Over Time